---
product_id: 203487574
title: "Hon&Guan 4 Inch Insulated Flexible Duct - 4 FT Noise Reducer Heavy-Duty Four Layer Protection Hose, Insulated Duct for Exhaust Fan Insulation, Heating & Cooling Ventilation, Black"
brand: "hon&guan"
price: "13389 som"
currency: KGS
in_stock: true
reviews_count: 13
category: "Hon&Guan"
url: https://www.desertcart.kg/products/203487574-hon-and-guan-4-inch-insulated-flexible-duct-4-ft
store_origin: KG
region: Kyrgyzstan
---

# 50% noise reduction Thermal range -22°F to 302°F 4-layer heavy-duty protection Hon&Guan 4 Inch Insulated Flexible Duct - 4 FT Noise Reducer Heavy-Duty Four Layer Protection Hose, Insulated Duct for Exhaust Fan Insulation, Heating & Cooling Ventilation, Black

**Brand:** hon&guan
**Price:** 13389 som
**Availability:** ✅ In Stock

## Summary

> 🖤 Upgrade your airflow game with the ultimate insulated duct—cool, quiet, and built to last.

## Quick Answers

- **What is this?** Hon&Guan 4 Inch Insulated Flexible Duct - 4 FT Noise Reducer Heavy-Duty Four Layer Protection Hose, Insulated Duct for Exhaust Fan Insulation, Heating & Cooling Ventilation, Black by hon&guan
- **How much does it cost?** 13389 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/203487574-hon-and-guan-4-inch-insulated-flexible-duct-4-ft)

## Best For

- hon&guan enthusiasts

## Why This Product

- Trusted hon&guan brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Four-layer armor (PVC + 2x aluminum foil + glass wool) resists corrosion, pets, and wear for long-term durability.
- • **Thermal Mastery:** Endures extreme temps from -22°F to 302°F, keeping your AC and ventilation systems ultra-efficient.
- • **Plug & Play Durability:** Includes reinforced foil ends and clamps for secure, hassle-free installation that outperforms standard ducts.
- • **Versatile HVAC Upgrade:** Perfect for portable ACs, exhaust fans, grow rooms, kitchens, and bathrooms—boost airflow and comfort everywhere.
- • **Whisper-Quiet Efficiency:** Cut noise by half with advanced glass wool insulation—your space, now peaceful.

## Overview

The Hon&Guan 4 Inch Insulated Flexible Duct is a 4-foot heavy-duty hose designed for HVAC systems, featuring four layers of protection including glass wool insulation that reduces noise by up to 50% and withstands temperatures from -22°F to 302°F. Its durable PVC and aluminum construction prevents corrosion and damage, making it ideal for portable air conditioners, exhaust fans, and ventilation in kitchens, bathrooms, and grow rooms.

## Description

Hon&Guan 4 Inch Insulated Flexible Duct - 4 FT Noise Reducer Heavy-Duty Four Layer Protection Hose, Insulated Duct for Exhaust Fan Insulation, Heating & Cooling Ventilation, Black - desertcart.com

Review: Huge improvement over regular duct - Purchased for a portable AC exhaust hose replacement. Works GREAT! Gets barely warm to the touch, when the old exhaust hose was extremely hot and radiating heat back into the room. AC is a little quieter too. Can't recommend this insulated duct highly enough, I can't believe I had been undermining my AC's efficiency for years with a non-insulated exhaust duct. The duct itself feels very well-made, each end has a short length of reinforced foil which fits under the included hose clamps perfectly. Insulated outer duct begins a few inches later, and the outer duct material feels very durable and flexible. The inner duct acts as the support and the outer duct holds the insulation in place, and the result is a dramatic drop in outer duct temp. AC has been running for a few hours now the outer duct is no hotter. I think we have a winner.
Review: Excellent Upgrade for Portable Air Conditioner - The stock hoses for my portable (two-hose!) air conditioner had disintegrated, and I've long been considering buying a set of insulated hoses for it ever since I bought the unit. I'm honestly surprised that they were not insulated at all out of the box. As such, I bought two of these hoses in 6"x8'. Installing them onto the original hose adapters was a bit of a task, entailing very liberal application of duct tape. This done, I connected them up and powered the unit up. I did not buy these hoses with the intent of being quiet, but I was honestly and pleasantly surprised by how much quieter the condenser side fan was now. I can barely hear it anymore, and it quickly subsides under the sound of the compressor once pressure builds. With the original hoses, it was easily the loudest part of the entire air conditioner. I cannot measure the thermal performance directly versus the original hoses, due to the original hoses having disintegrated years ago as of me writing this review. However, I can definitely say that, before, it was actually hot behind the unit. With these, it's significantly cooler, and the unit's performance has significantly improved. It can now actually cool my garage! Something it used to struggle with. The hoses have also survived from a durability standpoint significantly better than the original plastic hoses. Although they ARE a little less convenient to store when the air conditioner's not in use thanks to their bulk. That's the only "negative", other than the admittedly improvised installation, that I can even say about them. Final Answer: If you have a portable air conditioner and use it with any regularity, upgrade it to insulated hose(s) now. You will not regret it.

## Features

- Noise Reducer&Absorption：The internal structure of glass wool is fluffy and the overall density is large, noise can be reduced by allowing some of the sound waves to escape through the holes rather than reflecting, can decrease the noise by up to 50%
- Thermal Insulation：This Flex Duct is intended to be used in heat preservation, cooling, ventilation, with a good thermal insulation performance, works well with your portable ac device, temperature endurance range from -22°F ~ 302 °F (-30℃ ~ 150℃)
- Four Layer Protection：Heavy-duty four layer protection design, 1 * PVC+2 * aluminum foil+1 * centrally glass wool with 2 clamps, and the outermost layer of this insulated flexible duct can prevents cute “pets” from biting and breaking
- Anti-Corrosion & Durable：Thick layer of PVC&2 layers of Aluminum on this flexible ducting prevents gas leaks effectively. Works with extractor and exhaust inline duct fans, carbon filters, also be used as a boat blower hose
- Variety of Applications：Hon&Guan insulated flexible duct is suitable for HVAC system. It will move and deliver air in Kitchens (cooking exhaust), Green Houses and Grow Rooms (Air Circulation, Intake, Exhaust and Light Fixture Cooling), Bathrooms (Smell and Moisture Exhaust), Dryer Rooms, Grow Tents and other applications etc

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B081ZT178G |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #28,621 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #33 in HVAC Ducting |
| Brand | Hon&Guan |
| Color | Black |
| Customer Reviews | 4.4 4.4 out of 5 stars (636) |
| Date First Available | November 6, 2019 |
| Included Components | 2PCS Clamps, 4'' Insulated Flexible Duct |
| Item Length | 1.2 Meters |
| Item Weight | 1.24 pounds |
| Manufacturer | Hon&Guan |
| Material | Aluminum, PET, PVC |
| Maximum Pressure | 2500 Pascal |
| Nominal Wall Thickness | 25 millimeters |
| Outside Diameter | 4 Inches |
| Part Number | US-PK090 |
| Size | 4" X 4 FT |

## Product Details

- **Brand:** Hon&Guan
- **Color:** Black
- **Item Length:** 1.2 Meters
- **Manufacturer:** Hon&Guan
- **Material:** Aluminum, PET, PVC
- **Maximum Pressure:** 2500 Pascal
- **Nominal Wall Thickness:** 25 millimeters
- **Outside Diameter:** 4 Inches

## Images

![Hon&Guan 4 Inch Insulated Flexible Duct - 4 FT Noise Reducer Heavy-Duty Four Layer Protection Hose, Insulated Duct for Exhaust Fan Insulation, Heating & Cooling Ventilation, Black - Image 1](https://m.media-amazon.com/images/I/71u--CpP7BL.jpg)
![Hon&Guan 4 Inch Insulated Flexible Duct - 4 FT Noise Reducer Heavy-Duty Four Layer Protection Hose, Insulated Duct for Exhaust Fan Insulation, Heating & Cooling Ventilation, Black - Image 2](https://m.media-amazon.com/images/I/71JTIVy4PxL.jpg)
![Hon&Guan 4 Inch Insulated Flexible Duct - 4 FT Noise Reducer Heavy-Duty Four Layer Protection Hose, Insulated Duct for Exhaust Fan Insulation, Heating & Cooling Ventilation, Black - Image 3](https://m.media-amazon.com/images/I/71yLptW1AKL.jpg)
![Hon&Guan 4 Inch Insulated Flexible Duct - 4 FT Noise Reducer Heavy-Duty Four Layer Protection Hose, Insulated Duct for Exhaust Fan Insulation, Heating & Cooling Ventilation, Black - Image 4](https://m.media-amazon.com/images/I/813wmF0tecL.jpg)
![Hon&Guan 4 Inch Insulated Flexible Duct - 4 FT Noise Reducer Heavy-Duty Four Layer Protection Hose, Insulated Duct for Exhaust Fan Insulation, Heating & Cooling Ventilation, Black - Image 5](https://m.media-amazon.com/images/I/81gwAkAx+xL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Huge improvement over regular duct
*by M***. on July 14, 2024*

Purchased for a portable AC exhaust hose replacement. Works GREAT! Gets barely warm to the touch, when the old exhaust hose was extremely hot and radiating heat back into the room. AC is a little quieter too. Can't recommend this insulated duct highly enough, I can't believe I had been undermining my AC's efficiency for years with a non-insulated exhaust duct. The duct itself feels very well-made, each end has a short length of reinforced foil which fits under the included hose clamps perfectly. Insulated outer duct begins a few inches later, and the outer duct material feels very durable and flexible. The inner duct acts as the support and the outer duct holds the insulation in place, and the result is a dramatic drop in outer duct temp. AC has been running for a few hours now the outer duct is no hotter. I think we have a winner.

### ⭐⭐⭐⭐⭐ Excellent Upgrade for Portable Air Conditioner
*by J***H on September 18, 2021*

The stock hoses for my portable (two-hose!) air conditioner had disintegrated, and I've long been considering buying a set of insulated hoses for it ever since I bought the unit. I'm honestly surprised that they were not insulated at all out of the box. As such, I bought two of these hoses in 6"x8'. Installing them onto the original hose adapters was a bit of a task, entailing very liberal application of duct tape. This done, I connected them up and powered the unit up. I did not buy these hoses with the intent of being quiet, but I was honestly and pleasantly surprised by how much quieter the condenser side fan was now. I can barely hear it anymore, and it quickly subsides under the sound of the compressor once pressure builds. With the original hoses, it was easily the loudest part of the entire air conditioner. I cannot measure the thermal performance directly versus the original hoses, due to the original hoses having disintegrated years ago as of me writing this review. However, I can definitely say that, before, it was actually hot behind the unit. With these, it's significantly cooler, and the unit's performance has significantly improved. It can now actually cool my garage! Something it used to struggle with. The hoses have also survived from a durability standpoint significantly better than the original plastic hoses. Although they ARE a little less convenient to store when the air conditioner's not in use thanks to their bulk. That's the only "negative", other than the admittedly improvised installation, that I can even say about them. Final Answer: If you have a portable air conditioner and use it with any regularity, upgrade it to insulated hose(s) now. You will not regret it.

### ⭐⭐⭐⭐⭐ Excellent thermal insulation. Excellent noise reduction. Good quality.
*by C***B on May 27, 2021*

I purchased the 6" x 8' hose to install on my portable air conditioner. Anyone that has one, you know the heat that radiates from the included hose is very high and inefficient. Although this hose does not look the prettiest, it is an absolute must for replacing the included hose on your conditioner. Running my air conditioner prior to this hose, I could only keep the room about 8 degrees below outside temps. After installing this hose, the room cools MUCH FASTER, and also gets about another 6 degrees cooler compared to the outside. An almost double cooling efficiency. This hose is room temp to touch, and feels like it contains >90% of the heat my previous hose allowed through. In addition, the air conditioner unit runs much quieter due to the sound insulation this hose provides. At least 30% of the noise from your AC is coming from the turbulent air flow rattling around inside the hard crimps of your standard plastic hose. If you do purchase this hose for your AC, make sure to get a size slightly larger than the diameter of your input/output, so you can fix the hose to the exterior of the couplings with a good duct tape. Honestly, if you try to fix the hose to the interior, it seems like you might end up rupturing the lining and exposing the fiberglass inside, which would be bad. I used the larger size and it secures nicely in place with a good 3" wide duct tape.

## Frequently Bought Together

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-02-27*